/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf -i ../../../trunk/examples/svcomp/openssl/s3_srvr.blast.01.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 03:32:09,569 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 03:32:09,571 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 03:32:09,631 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 03:32:09,632 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 03:32:09,634 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 03:32:09,636 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 03:32:09,638 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 03:32:09,639 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 03:32:09,643 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 03:32:09,644 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 03:32:09,645 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 03:32:09,645 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 03:32:09,646 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 03:32:09,647 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 03:32:09,650 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 03:32:09,650 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 03:32:09,651 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 03:32:09,652 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 03:32:09,653 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 03:32:09,654 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 03:32:09,654 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 03:32:09,655 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 03:32:09,656 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 03:32:09,659 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 03:32:09,659 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 03:32:09,659 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 03:32:09,660 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 03:32:09,660 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 03:32:09,661 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 03:32:09,661 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 03:32:09,661 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 03:32:09,663 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 03:32:09,663 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 03:32:09,664 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 03:32:09,664 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 03:32:09,664 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 03:32:09,664 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 03:32:09,665 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 03:32:09,665 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 03:32:09,665 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 03:32:09,666 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf [2022-01-11 03:32:09,691 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 03:32:09,692 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 03:32:09,692 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 03:32:09,692 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 03:32:09,693 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 03:32:09,693 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 03:32:09,693 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 03:32:09,693 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 03:32:09,693 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 03:32:09,693 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 03:32:09,694 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 03:32:09,694 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 03:32:09,694 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 03:32:09,694 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 03:32:09,694 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 03:32:09,694 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 03:32:09,694 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 03:32:09,694 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 03:32:09,695 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 03:32:09,695 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 03:32:09,695 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 03:32:09,696 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 03:32:09,696 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 03:32:09,696 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 03:32:09,696 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 03:32:09,696 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 03:32:09,696 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 03:32:09,696 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 03:32:09,696 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 03:32:09,697 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 03:32:09,697 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 03:32:09,697 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 03:32:09,697 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 03:32:09,697 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_SUM WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 03:32:09,884 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 03:32:09,904 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 03:32:09,906 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 03:32:09,906 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 03:32:09,907 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 03:32:09,907 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.01.i.cil-2.c [2022-01-11 03:32:09,945 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8169243b8/c5637f828da24dc08a8b483049bca77f/FLAG659bc9df3 [2022-01-11 03:32:10,400 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 03:32:10,401 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.01.i.cil-2.c [2022-01-11 03:32:10,430 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8169243b8/c5637f828da24dc08a8b483049bca77f/FLAG659bc9df3 [2022-01-11 03:32:10,441 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8169243b8/c5637f828da24dc08a8b483049bca77f [2022-01-11 03:32:10,442 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 03:32:10,443 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 03:32:10,445 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 03:32:10,445 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 03:32:10,447 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 03:32:10,447 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 03:32:10" (1/1) ... [2022-01-11 03:32:10,448 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c59a30f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:32:10, skipping insertion in model container [2022-01-11 03:32:10,448 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 03:32:10" (1/1) ... [2022-01-11 03:32:10,453 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 03:32:10,519 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 03:32:10,749 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.01.i.cil-2.c[72913,72926] [2022-01-11 03:32:10,755 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 03:32:10,765 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-11 03:32:10,778 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 03:32:10,849 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.01.i.cil-2.c[72913,72926] [2022-01-11 03:32:10,851 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 03:32:10,856 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 03:32:10,912 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.01.i.cil-2.c[72913,72926] [2022-01-11 03:32:10,914 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 03:32:10,926 INFO L208 MainTranslator]: Completed translation [2022-01-11 03:32:10,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:32:10 WrapperNode [2022-01-11 03:32:10,927 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 03:32:10,928 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 03:32:10,928 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 03:32:10,928 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 03:32:10,933 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:32:10" (1/1) ... [2022-01-11 03:32:10,960 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:32:10" (1/1) ... [2022-01-11 03:32:11,001 INFO L137 Inliner]: procedures = 41, calls = 248, calls flagged for inlining = 7, calls inlined = 3, statements flattened = 780 [2022-01-11 03:32:11,002 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 03:32:11,002 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 03:32:11,002 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 03:32:11,002 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 03:32:11,013 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:32:10" (1/1) ... [2022-01-11 03:32:11,014 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:32:10" (1/1) ... [2022-01-11 03:32:11,030 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:32:10" (1/1) ... [2022-01-11 03:32:11,030 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:32:10" (1/1) ... [2022-01-11 03:32:11,066 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:32:10" (1/1) ... [2022-01-11 03:32:11,086 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:32:10" (1/1) ... [2022-01-11 03:32:11,089 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:32:10" (1/1) ... [2022-01-11 03:32:11,092 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 03:32:11,092 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 03:32:11,092 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 03:32:11,093 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 03:32:11,108 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:32:10" (1/1) ... [2022-01-11 03:32:11,114 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 03:32:11,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 03:32:11,138 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-11 03:32:11,150 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-11 03:32:11,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-01-11 03:32:11,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 03:32:11,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 03:32:11,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-01-11 03:32:11,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-01-11 03:32:11,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-01-11 03:32:11,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-01-11 03:32:11,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-01-11 03:32:11,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-11 03:32:11,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 03:32:11,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 03:32:11,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-01-11 03:32:11,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-01-11 03:32:11,324 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 03:32:11,324 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 03:32:11,335 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-11 03:32:23,064 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2022-01-11 03:32:23,065 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2022-01-11 03:32:23,065 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 03:32:23,070 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 03:32:23,070 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-11 03:32:23,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 03:32:23 BoogieIcfgContainer [2022-01-11 03:32:23,071 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 03:32:23,072 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 03:32:23,072 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 03:32:23,073 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 03:32:23,075 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 03:32:23" (1/1) ... [2022-01-11 03:32:23,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 03:32:23 BasicIcfg [2022-01-11 03:32:23,354 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 03:32:23,355 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 03:32:23,356 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 03:32:23,357 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 03:32:23,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 03:32:10" (1/4) ... [2022-01-11 03:32:23,358 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38ced08b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 03:32:23, skipping insertion in model container [2022-01-11 03:32:23,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:32:10" (2/4) ... [2022-01-11 03:32:23,358 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38ced08b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 03:32:23, skipping insertion in model container [2022-01-11 03:32:23,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 03:32:23" (3/4) ... [2022-01-11 03:32:23,358 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38ced08b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 03:32:23, skipping insertion in model container [2022-01-11 03:32:23,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 03:32:23" (4/4) ... [2022-01-11 03:32:23,359 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.01.i.cil-2.cTransformedIcfg [2022-01-11 03:32:23,363 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 03:32:23,363 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-11 03:32:23,403 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 03:32:23,409 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-11 03:32:23,409 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-11 03:32:23,421 INFO L276 IsEmpty]: Start isEmpty. Operand has 147 states, 145 states have (on average 1.696551724137931) internal successors, (246), 146 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:32:23,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-01-11 03:32:23,428 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 03:32:23,428 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 03:32:23,428 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 03:32:23,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 03:32:23,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1535695701, now seen corresponding path program 1 times [2022-01-11 03:32:23,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 03:32:23,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613667478] [2022-01-11 03:32:23,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 03:32:23,438 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 03:32:23,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 03:32:24,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 03:32:24,313 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 03:32:24,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613667478] [2022-01-11 03:32:24,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613667478] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 03:32:24,314 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 03:32:24,314 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 03:32:24,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258303368] [2022-01-11 03:32:24,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 03:32:24,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 03:32:24,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 03:32:24,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 03:32:24,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 03:32:24,337 INFO L87 Difference]: Start difference. First operand has 147 states, 145 states have (on average 1.696551724137931) internal successors, (246), 146 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:32:26,372 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-11 03:32:30,489 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-11 03:32:32,516 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-11 03:32:35,038 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-11 03:32:37,385 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-11 03:32:43,858 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-11 03:32:47,718 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-11 03:32:52,808 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-11 03:32:53,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 03:32:53,355 INFO L93 Difference]: Finished difference Result 390 states and 655 transitions. [2022-01-11 03:32:53,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 03:32:53,360 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-01-11 03:32:53,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 03:32:53,368 INFO L225 Difference]: With dead ends: 390 [2022-01-11 03:32:53,368 INFO L226 Difference]: Without dead ends: 230 [2022-01-11 03:32:53,370 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 03:32:53,372 INFO L933 BasicCegarLoop]: 159 mSDtfsCounter, 109 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 11 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.9s IncrementalHoareTripleChecker+Time [2022-01-11 03:32:53,372 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 447 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 251 Invalid, 8 Unknown, 0 Unchecked, 28.9s Time] [2022-01-11 03:32:53,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2022-01-11 03:32:53,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 169. [2022-01-11 03:32:53,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 168 states have (on average 1.6071428571428572) internal successors, (270), 168 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:32:53,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 270 transitions. [2022-01-11 03:32:53,412 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 270 transitions. Word has length 47 [2022-01-11 03:32:53,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 03:32:53,413 INFO L470 AbstractCegarLoop]: Abstraction has 169 states and 270 transitions. [2022-01-11 03:32:53,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:32:53,413 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 270 transitions. [2022-01-11 03:32:53,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-11 03:32:53,414 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 03:32:53,414 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 03:32:53,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 03:32:53,415 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 03:32:53,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 03:32:53,415 INFO L85 PathProgramCache]: Analyzing trace with hash 362875639, now seen corresponding path program 1 times [2022-01-11 03:32:53,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 03:32:53,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336974654] [2022-01-11 03:32:53,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 03:32:53,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 03:32:53,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 03:32:53,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 03:32:53,699 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 03:32:53,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336974654] [2022-01-11 03:32:53,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336974654] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 03:32:53,699 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 03:32:53,699 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 03:32:53,699 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230505126] [2022-01-11 03:32:53,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 03:32:53,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 03:32:53,700 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 03:32:53,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 03:32:53,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 03:32:53,701 INFO L87 Difference]: Start difference. First operand 169 states and 270 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:32:53,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 03:32:53,760 INFO L93 Difference]: Finished difference Result 414 states and 646 transitions. [2022-01-11 03:32:53,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 03:32:53,761 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2022-01-11 03:32:53,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 03:32:53,762 INFO L225 Difference]: With dead ends: 414 [2022-01-11 03:32:53,763 INFO L226 Difference]: Without dead ends: 290 [2022-01-11 03:32:53,763 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 03:32:53,764 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 147 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 03:32:53,764 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 378 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 03:32:53,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2022-01-11 03:32:53,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 290. [2022-01-11 03:32:53,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 289 states have (on average 1.560553633217993) internal successors, (451), 289 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:32:53,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 451 transitions. [2022-01-11 03:32:53,775 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 451 transitions. Word has length 48 [2022-01-11 03:32:53,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 03:32:53,775 INFO L470 AbstractCegarLoop]: Abstraction has 290 states and 451 transitions. [2022-01-11 03:32:53,775 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:32:53,775 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 451 transitions. [2022-01-11 03:32:53,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-11 03:32:53,777 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 03:32:53,777 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 03:32:53,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 03:32:53,778 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 03:32:53,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 03:32:53,778 INFO L85 PathProgramCache]: Analyzing trace with hash -92583130, now seen corresponding path program 1 times [2022-01-11 03:32:53,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 03:32:53,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199277665] [2022-01-11 03:32:53,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 03:32:53,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 03:32:53,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 03:32:54,188 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 03:32:54,188 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 03:32:54,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199277665] [2022-01-11 03:32:54,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199277665] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 03:32:54,189 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 03:32:54,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 03:32:54,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880642341] [2022-01-11 03:32:54,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 03:32:54,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 03:32:54,189 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 03:32:54,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 03:32:54,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 03:32:54,190 INFO L87 Difference]: Start difference. First operand 290 states and 451 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:32:56,217 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-11 03:32:58,687 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-11 03:33:01,672 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-11 03:33:03,795 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-11 03:33:07,568 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-11 03:33:10,820 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-11 03:33:11,902 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-11 03:33:13,551 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-11 03:33:15,587 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-11 03:33:17,988 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-11 03:33:20,677 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-11 03:33:26,414 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-11 03:33:29,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 03:33:29,857 INFO L93 Difference]: Finished difference Result 518 states and 800 transitions. [2022-01-11 03:33:29,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 03:33:29,860 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2022-01-11 03:33:29,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 03:33:29,862 INFO L225 Difference]: With dead ends: 518 [2022-01-11 03:33:29,862 INFO L226 Difference]: Without dead ends: 394 [2022-01-11 03:33:29,862 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 03:33:29,863 INFO L933 BasicCegarLoop]: 275 mSDtfsCounter, 88 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 11 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.6s IncrementalHoareTripleChecker+Time [2022-01-11 03:33:29,863 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 648 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 273 Invalid, 9 Unknown, 0 Unchecked, 35.6s Time] [2022-01-11 03:33:29,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2022-01-11 03:33:29,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 333. [2022-01-11 03:33:29,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 332 states have (on average 1.5993975903614457) internal successors, (531), 332 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:33:29,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 531 transitions. [2022-01-11 03:33:29,887 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 531 transitions. Word has length 64 [2022-01-11 03:33:29,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 03:33:29,888 INFO L470 AbstractCegarLoop]: Abstraction has 333 states and 531 transitions. [2022-01-11 03:33:29,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 03:33:29,890 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 531 transitions. [2022-01-11 03:33:29,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-01-11 03:33:29,892 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 03:33:29,892 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 03:33:29,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 03:33:29,893 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 03:33:29,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 03:33:29,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1425839430, now seen corresponding path program 1 times [2022-01-11 03:33:29,893 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 03:33:29,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548411704] [2022-01-11 03:33:29,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 03:33:29,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms